Full Rear Hydraulic Brake Assembly with 12mm Caliper for 70cc-250cc ATV & Dirt Bike

Product Overview

Get back on the trail quickly with this Full Rear Hydraulic Brake Assembly. This comprehensive kit comes pre-bled and ready for a "drop-in" installation, eliminating the hassle of bleeding air from your lines. Featuring a versatile master cylinder with multiple mounting patterns and a caliper designed for a 12mm axle, this assembly provides professional-grade stopping power for everything from 70cc youth quads to 250cc off-road buggies and dirt bikes.

Product Compatibility

Vehicle Type	Displacement Range	Fitment Note
Dirt Bikes / Pit Bikes	70cc, 110cc, 125cc, 140cc	Fits most mid-to-large frames
ATVs / Quads	110cc, 150cc, 250cc	TaoTao, Buyang, Coolsport, etc.
Go-Karts / Buggies	150cc – 250cc	Compatible with hydraulic rear discs
Axle Compatibility	12mm Shaft	Caliper bracket fits 12mm wheel shafts

Specifications

Feature	Details
Wheel Shaft Diameter	12mm (0.47")
Banjo Bolt Size	10mm (0.39")
Master Cylinder Mounts	Dual Patterns: 40mm & 50mm (Center-to-Center)
Material	Heavy-Duty Reinforced Metal
Setup	Pre-Bled with Fresh Hydraulic Fluid
Included Components	Master Cylinder, Caliper, Pads, Reservoir, Mounting Plate

Key Features

• Pre-Bled for Easy Installation: This system arrives fully assembled and pre-filled with brake fluid. Simply bolt it on and you're ready to ride—no messy bleeding process required.
• Dual-Pattern Master Cylinder: Engineered for maximum compatibility, the master cylinder features mounting holes at both 40mm and 50mm intervals to fit a wide variety of frame brackets.
• Complete System Replacement: Includes the master cylinder, a high-performance rear caliper with pre-installed pads, a remote fluid reservoir, and the necessary mounting plate.
• Rugged Metal Construction: Built from high-strength metal to withstand the heat and vibration of off-road racing, ensuring consistent braking performance without lever fade.
• 12mm Axle Fitment: The caliper bracket is precision-sized for a 12mm rear axle, providing a stable and secure fit for the most common dirt bike and ATV wheel configurations.